python之如何修复 "elasticsearch.exceptions.AuthenticationException: ... missing authentication token for REST request"

我正在研究使用 ElasticSearch 数据库来存储我从网上提取的数据。但是，当我尝试为数据库中的数据编制索引时，我收到错误消息。

这是我创建和索引数据的代码:

es = Elasticsearch() 
 
es.index(index='weather', doc_type='data', body=doc) 

但是当我运行这个程序时，第二行会导致错误，这里是完整的回溯:

Traceback (most recent call last): 
File "weatherScraper.py", line 79, in <module> 
  main() 
File "weatherScraper.py", line 73, in main 
  es.index(index='weather', doc_type='data', body=doc) 
File "/home/alec/.local/lib/python2.7/site-packages/elasticsearch/client/utils.py", line 73, in _wrapped 
  return func(*args, params=params, **kwargs) 
File "/home/alec/.local/lib/python2.7/site-packages/elasticsearch/client/__init__.py", line 298, in index 
  _make_path(index, doc_type, id), params=params, body=body) 
File "/home/alec/.local/lib/python2.7/site-packages/elasticsearch/transport.py", line 312, in perform_request 
  status, headers, data = connection.perform_request(method, url, params, body, ignore=ignore, timeout=timeout) 
File "/home/alec/.local/lib/python2.7/site-packages/elasticsearch/connection/http_urllib3.py", line 128, in perform_request 
  self._raise_error(response.status, raw_data) 
File "/home/alec/.local/lib/python2.7/site-packages/elasticsearch/connection/base.py", line 125, in _raise_error 
  raise HTTP_EXCEPTIONS.get(status_code, TransportError)(status_code, error_message, additional_info) 
elasticsearch.exceptions.AuthenticationException: TransportError(401, u'security_exception', u'missing authentication token for REST request [/weather/data]') 

请您参考如下方法:

''缺少身份验证 token '意味着您需要先进行身份验证才能与此 Elasticsearch 实例通信。要索引文档，用户必须具有写入权限。您可以在 URL 中包含用户名和密码，如下所示:http://user:password@hostname:port

例如，在 shell 中:

export ES_ENDPOINT="http://usernameWithWriteAccess:password@localhost:9200" 

然后在 python 中:

es = Elasticsearch(os.environ['ES_ENDPOINT'])